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Pain Research and Management
Volume 17, Issue 5, Pages 347-352
http://dx.doi.org/10.1155/2012/542354
Original Article

Incidence of Severe Pain in Newly Diagnosed Ambulatory Patients with Stage IV Cancer

Thomas Isaac,1,2 Sherri O Stuver,1,3 Roger B Davis,2 Susan Block,4 Jane C Weeks,5 Donna L Berry,6 and Saul N Weingart1

1Center for Patient Safety, Dana-Farber Cancer Institute, Canada
2Division of General Medicine and Primary Care, Beth Israel Deaconess Medical Center, USA
3Department of Epidemiology, Boston University School of Public Health, USA
4Department of Psychosocial Oncology and Palliative Care, Dana-Farber Cancer Institute, USA
5Center for Outcomes and Policy Research, Dana-Farber Cancer Institute, Boston, USA
6Phyllis F Cantor Center for Research in Nursing and Patient Care Services, Dana-Farber Cancer Institute, Boston, Massachusetts, USA

Copyright © 2012 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

BACKGROUND: Pain is common among cancer patients.

OBJECTIVE: To characterize the incidence of severe pain among newly diagnosed patients with stage IV cancer in ambulatory care.

METHODS: A retrospective cohort of 505 ambulatory oncology patients with newly diagnosed stage IV solid tumours at a comprehensive cancer centre (Dana-Farber Cancer Institute, Boston, Massachusetts, USA) was followed from January 1, 2004, to December 31, 2006. Pain intensity scores were extracted from electronic medical records. The incidence of severe pain was calculated using the maximum monthly pain scores reported at outpatient visits.

RESULTS: Of the 505 patients included in the present study, 340 (67.3%) were pain-free at the initial visit, 90 (17.8%) experienced mild pain, 48 (9.5%) experienced moderate pain and 27 (5.4%) experienced severe pain. At least one episode of severe pain within one year of diagnosis was reported by 29.1% of patients. Patients with head and neck, gastrointestinal and thoracic malignancies were more likely to experience severe pain compared with patients with other types of cancer (52.6%, 33.9% and 30.5%, respectively). In the multivariable model, patients whose primary language was not English (OR 2.90 [95% CI 1.08 to 7.80]), patients who reported severe pain at the initial visit (OR 9.30 [95% CI 3.72 to 23.23]) and patients with head and neck (OR 10.17 [95% CI 2.87 to 36.00]) or gastrointestinal (OR 4.05 [95% CI 1.23 to 13.35]) cancers were more likely to report severe pain in the following year.

CONCLUSIONS: The incidence of severe pain was high in ambulatory patients with newly diagnosed stage IV cancer.